Medical Terminology Letter I
| TERM | MEANING | 
| iatr/o | treatment, physician | 
| ichthy/o | fish | 
| -ician | specialist | 
| icter/o | jaundice | 
| ide/o | idea, mental images | 
| idi/o | individual, distinct, unknown | 
| ile/o | ileum | 
| ili/o | ilium | 
| immun/o | protection, immune | 
| infra- | below, beneath | 
| inguion/o | groin | 
| inter- | between | 
| intra- | within | 
| iod/o | iod/oiodine | 
| ion/o | ion | 
| ipsi- | same | 
| ir/o, irid/o | iris | 
| ischi/o | ischium | 
| isch/o | suppress, restrain | 
| is/o | equal | 
| -ist | specialist | 
| ithy- | erect, straight | 
| -itis | inflammation | 
| ixod/i | ticks | 
